Britney Spears made a surprise appearance at last night’s world premiere of the movie Once Upon a Time in Hollywood. Britney brought her boyfriend, Sam Asghari. They’ve dated over two years but this is their first red carpet together. They shared on nstagram photos of the occasion where they walked arm-in-arm and kissed. Followers noticed a dazzling diamond ring on her left finger and speculated if Sam had proposed. Britney’s Instagram exclaimed (quote) “Our first premiere.”